SOLUTION: Solve the following simultaneous equation: 2a + 9 = b; 7a = 1 - 3b Please show any working out, and thank you in advance for your help

Algebra ->  Equations -> SOLUTION: Solve the following simultaneous equation: 2a + 9 = b; 7a = 1 - 3b Please show any working out, and thank you in advance for your help      Log On


   

Question 37707: Solve the following simultaneous equation:
2a + 9 = b; 7a = 1 - 3b
Please show any working out, and thank you in advance for your help
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
IF B=2A+9 THEN 7A=1-3(2A+9) OR 7A=1-6A-27 OR 13A=-26 OR A=-26/13 OR A=-2
THEN 7*-2=1-3B OR -14=1-3B OR -15=-3B OR B=-15/3 OR B=5